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Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).
✔️ This issue was automatically closed by WhiteSource because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the WhiteSource inventory.
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changed the title
CVE-2019-20920 (High) detected in handlebars-4.0.5.tgz
CVE-2019-20920 (High) detected in handlebars-4.0.5.tgz - autoclosed
Mar 11, 2022
CVE-2019-20920 - High Severity Vulnerability
Vulnerable Library - handlebars-4.0.5.tgz
Handlebars provides the power necessary to let you build semantic templates effectively with no frustration
Library home page: https://registry.npmjs.org/handlebars/-/handlebars-4.0.5.tgz
Path to dependency file: NodeGoat/package.json
Path to vulnerable library: NodeGoat/node_modules/nyc/node_modules/handlebars/package.json
Dependency Hierarchy:
Found in HEAD commit: 26ef3f51dc7e983c5a5b8c3b9239aca51a91432b
Vulnerability Details
Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript. This can be used to run arbitrary code on a server processing Handlebars templates or in a victim's browser (effectively serving as XSS).
Publish Date: 2020-09-30
URL: CVE-2019-20920
CVSS 3 Score Details (8.1)
Base Score Metrics:
Suggested Fix
Type: Upgrade version
Origin: https://www.npmjs.com/advisories/1324
Release Date: 2020-10-15
Fix Resolution: handlebars - 4.5.3
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